Add optional sensor reading logging instrumentation

Noteworthy sensor readings,
such as the first reading,
a new minimum or maximum value,
or ending a good or bad streak of readings,
will now have some useful logging output.

This feature defaults to disabled, to enable it,
set "enableInstrumentation" constant to "true".

Tested:
It runs, and produces useful output, when enabled.
When disabled, it does nothing.

Signed-off-by: Josh Lehan <krellan@google.com>
Change-Id: I4c1b5105ad6dbb92ae6a23f2b99e2a8b68b56dca
1 file changed
tree: 458cd31808f61f74ccf8d652d1a7cf4f61788828
  1. cmake/
  2. include/
  3. service_files/
  4. src/
  5. tests/
  6. .clang-format
  7. .clang-ignore
  8. .gitignore
  9. cmake-format.json
  10. CMakeLists.txt
  11. Jenkinsfile
  12. LICENSE
  13. MAINTAINERS
  14. README.md
README.md

dbus-sensors

dbus-sensors is a collection of sensor applications that provide the xyz.openbmc_project.Sensor collection of interfaces. They read sensor values from hwmon, d-bus, or direct driver access to provide readings. Some advance non-sensor features such as fan presence, pwm control, and automatic cpu detection (x86) are also supported.

key features

  • runtime re-configurable from d-bus (entity-manager or the like)

  • isolated: each sensor type is isolated into its own daemon, so a bug in one sensor is unlikely to affect another, and single sensor modifications are possible

  • async single-threaded: uses sdbusplus/asio bindings

  • multiple data inputs: hwmon, d-bus, direct driver access